Pregunta
Find the
-score corresponding to the given area. Round to two decimals, if necessary,
The area to the left of
is
.
The area to the right of
is
.
The area between
and
is
.
The area to the left of
The area to the right of
The area between
Ask by Lindsey Williams. in the United States
Jan 21,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
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Solución
Alright, I need to find the
-scores corresponding to the given areas. Let’s tackle each part one by one.
First Problem:
- Given: The area to the left of
is . - To Find: The
-score .
Since the area to the left of
is
, this means that
is the 60th percentile in the standard normal distribution. To find the exact
-score, I’ll use the standard normal distribution table or a calculator that provides the inverse cumulative distribution function.
Looking up
in the standard normal distribution table:
- The table typically provides the cumulative area from the left up to a certain
-value. - For
, the corresponding -score is approximately .
So,
.
Second Problem:
- Given: The area to the right of
is . - To Find: The
-score .
The area to the right of
being
implies that the area to the left of
is
(since the total area under the curve is
).
Using the standard normal distribution table:
-
corresponds to a -score of approximately .
Therefore,
.
Third Problem:
- Given: The area between
and is . - To Find: The
-score .
The area between
and
represents the central
of the distribution. This means that
of the data lies within
standard deviations from the mean.
To find
, I’ll use the property that the area between
and
is
.
So,
.
This simplifies to:
Looking up
in the standard normal distribution table:
- The corresponding
-score is approximately .
Therefore,
.
Summary of Findings:
- For the area to the left of
being , . - For the area to the right of
being , . - For the area between
and being , .
Respondido por UpStudy AI y revisado por un tutor profesional
Como
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The Deep Dive
To find the
-score corresponding to the area to the left of
being
, you can use standard normal distribution tables or a calculator. The area of
implies that
is the value where
of the data lies to the left. Looking it up, the
corresponding to
is approximately
.
Next, for the area to the right of
being
, that leaves
to the left. Therefore, you are looking for where
of the distribution falls to the left. From the standard normal distribution table, the
corresponding to
is approximately
.
Lastly, for the area between
and
being
, the area in the tails combined is
(or
in each tail). Therefore, you want to find the
value where
is to the left. Look it up, and you find the corresponding
around
.
So, the answers are:

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